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Figure 3 Influence of left ventricular systolic performance on the correlation between mean pulmonary capillary wedge pressure (Pw) and: (A) E peak velocity/Flow propagation velocity (FPV) and (B) the parameter 10³/([2·IVRT] + FPV). IVRT = isovolumic relaxation time. Dashed lines and open squares = patients with left ventricular ejection fraction >50%; Solid lines and solid squares = patients with left ventricular ejection fraction 50%.